3213454540 has 48 divisors (see below), whose sum is σ = 6951782880. Its totient is φ = 1246968320.

The previous prime is 3213454523. The next prime is 3213454561. The reversal of 3213454540 is 454543123.

It is a super-2 number, since 2×3213454540² = 20652580161293223200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135834 + ... + 157726.

It is an arithmetic number, because the mean of its divisors is an integer number (144828810).

Almost surely, 2^3213454540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213454540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3475891440).

3213454540 is an abundant number, since it is smaller than the sum of its proper divisors (3738328340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213454540 is a wasteful number, since it uses less digits than its factorization.

3213454540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22122 (or 22120 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 3213454540 is about 56687.3402092566. The cubic root of 3213454540 is about 1475.6750012134.

Adding to 3213454540 its reverse (454543123), we get a palindrome (3667997663).

The spelling of 3213454540 in words is "three billion, two hundred thirteen million, four hundred fifty-four thousand, five hundred forty".